GB2359135A - Processing well log data - Google Patents

Processing well log data

Info

Publication number
GB2359135A
GB2359135A GB0111887A GB0111887A GB2359135A GB 2359135 A GB2359135 A GB 2359135A GB 0111887 A GB0111887 A GB 0111887A GB 0111887 A GB0111887 A GB 0111887A GB 2359135 A GB2359135 A GB 2359135A
Authority
GB
United Kingdom
Prior art keywords
interval
parameters
borehole
log data
measurements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB0111887A
Other versions
GB0111887D0 (en
GB2359135B (en
Inventor
Anthony Smits
Vivian Pistre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schlumberger Ltd USA
Original Assignee
Schlumberger Ltd USA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schlumberger Ltd USA filed Critical Schlumberger Ltd USA
Publication of GB0111887D0 publication Critical patent/GB0111887D0/en
Publication of GB2359135A publication Critical patent/GB2359135A/en
Application granted granted Critical
Publication of GB2359135B publication Critical patent/GB2359135B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/40—Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging
    • G01V1/44—Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging using generators and receivers in the same well
    • G01V1/48—Processing data

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

Method of processing data obtained from an interval of a borehole using an array tool, such as a sonic logging tool, to make a series of measurements in the interval, the method comprising: (i) determining from data, a set of parameters, such as transit time differences or formation slowness, relating to the formation for each pair of receivers in the array for each measurement in the series; (ii) removing any parameters which fall outside predetermined limits based on the known physical properties of the borehole; (iii) comparing pairs of parameters relating to measurements at the same location in the interval; and (iv) statistical processing of the comparisons to determine an acceptable value for the parameter at each location in the interval.
GB0111887A 1998-11-20 1998-11-20 Processing well log data Expired - Fee Related GB2359135B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB1998/001846 WO2000031568A1 (en) 1998-11-20 1998-11-20 Processing well log data

Publications (3)

Publication Number Publication Date
GB0111887D0 GB0111887D0 (en) 2001-07-04
GB2359135A true GB2359135A (en) 2001-08-15
GB2359135B GB2359135B (en) 2003-04-16

Family

ID=11004779

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0111887A Expired - Fee Related GB2359135B (en) 1998-11-20 1998-11-20 Processing well log data

Country Status (3)

Country Link
AU (1) AU1048799A (en)
GB (1) GB2359135B (en)
WO (1) WO2000031568A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2476872A (en) * 2010-01-08 2011-07-13 Logined Bv Reducing the influence of outlier data and boundary conditions on the estimation of coefficients in a velocity function for well data
US8670288B2 (en) 2009-02-04 2014-03-11 Schlumberger Technology Corporation Velocity model for well time-depth conversion

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2374416B (en) * 2000-12-19 2003-04-09 Schlumberger Holdings Sonic well logging for alteration detection
US6526354B2 (en) 2001-02-01 2003-02-25 Schlumberger Technology Corporation Sonic well logging for alteration detection
US7423930B2 (en) * 2003-12-10 2008-09-09 Schlumberger Technology Corporation Methods and systems for detecting arrivals of interest

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4543648A (en) * 1983-12-29 1985-09-24 Schlumberger Technology Corporation Shot to shot processing for measuring a characteristic of earth formations from inside a borehole
US4698793A (en) * 1984-05-23 1987-10-06 Schlumberger Technology Corporation Methods for processing sonic data
US4845616A (en) * 1987-08-10 1989-07-04 Halliburton Logging Services, Inc. Method for extracting acoustic velocities in a well borehole
GB2295014A (en) * 1994-11-08 1996-05-15 Western Atlas Int Inc Acoustic logging
GB2306220A (en) * 1995-10-03 1997-04-30 Schlumberger Ltd Borehole logging using Stoneley waves
US5661696A (en) * 1994-10-13 1997-08-26 Schlumberger Technology Corporation Methods and apparatus for determining error in formation parameter determinations
GB2322197A (en) * 1997-02-18 1998-08-19 David Gordon Quirk Well log stacking

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4543648A (en) * 1983-12-29 1985-09-24 Schlumberger Technology Corporation Shot to shot processing for measuring a characteristic of earth formations from inside a borehole
US4698793A (en) * 1984-05-23 1987-10-06 Schlumberger Technology Corporation Methods for processing sonic data
US4845616A (en) * 1987-08-10 1989-07-04 Halliburton Logging Services, Inc. Method for extracting acoustic velocities in a well borehole
US5661696A (en) * 1994-10-13 1997-08-26 Schlumberger Technology Corporation Methods and apparatus for determining error in formation parameter determinations
GB2295014A (en) * 1994-11-08 1996-05-15 Western Atlas Int Inc Acoustic logging
GB2306220A (en) * 1995-10-03 1997-04-30 Schlumberger Ltd Borehole logging using Stoneley waves
GB2322197A (en) * 1997-02-18 1998-08-19 David Gordon Quirk Well log stacking

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
IEEE Conference Record of the International Symposium on Electrical Insulation, June 3-6, 1990, p *
IEEE Transactions on Acoustics, Speech & Signal Processing, Vol 37, No 2, 1 Feb 1989, pp 65-273 *
p 100-111 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8599644B2 (en) 2009-02-04 2013-12-03 Schlumberger Technology Corporation Velocity models for a single well and for a set of wells
US8670288B2 (en) 2009-02-04 2014-03-11 Schlumberger Technology Corporation Velocity model for well time-depth conversion
GB2476872A (en) * 2010-01-08 2011-07-13 Logined Bv Reducing the influence of outlier data and boundary conditions on the estimation of coefficients in a velocity function for well data
GB2476872B (en) * 2010-01-08 2012-05-09 Logined Bv Velocity models for a single well and for a set of wells

Also Published As

Publication number Publication date
AU1048799A (en) 2000-06-13
GB0111887D0 (en) 2001-07-04
GB2359135B (en) 2003-04-16
WO2000031568A1 (en) 2000-06-02

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20091120